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Computer Glasses

What Are The Top Benefits To Wearing Computer Glasses?

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Computer Glasses & Eye Exams

What Are Computer Glasses and Do They Make a Difference?

Many people spend most of their waking hours staring at screens, exposing them to the potentially harmful effects of blue light. In fact, if you’re reading this on one of your screens, you’re exposing your eyes to blue light at this very moment.

All this screen time comes at a price: It can cause headaches, eyestrain, insomnia, and possibly eye disease. Blue light glasses (also known as computer glasses) have been touted to combat these problems head-on. But do they really make a difference to those who spend many hours a day staring at screens?

What Is Blue Light?

Blue light is a color in the light spectrum visible to human eyes — though it doesn’t actually appear blue to the naked eye.

It’s a short wavelength that produces high amounts of energy (from 400 to 500 nanometers) and is often referred to as high-energy visible light (HEV). In fact, any source of visible light emits blue light, whether it’s an artificial source like a digital screen or a light bulb, or a natural one, like the sun.

How Does Blue Light Affect Your Eyes?

It Obstructs the Wake/Sleep Cycle

Prior to the invention of artificial light, the sun regulated our sleep schedules. After sundown, the darkness signals to our bodies that it’s time to produce melatonin, the hormone responsible for enabling us to sleep.

Nowadays, we’re exposed to blue light throughout the day and late into the night. While exposure to any light in the evening hours delays the production of melatonin, blue light waves can be particularly problematic as they radically disrupt these signals, causing less melatonin to be generated.

This essentially throws off our natural body clocks, since the brain associates blue light with daytime, making it harder to fall asleep at night and wake up in the morning.

It May Increase the Risk of Macular Degeneration

A 2018 study by the University of Alcalá suggests that a high level of blue light exposure may increase one’s risk of macular degeneration later in life, which can lead to permanent vision loss.

This is because blue light penetrates right through the cornea to the retina, damaging light-sensitive cells in the retina.

It Can Potentially Cause Eye Strain

Blue light scatters more easily than other visible light. This unfocused light reduces contrast and can contribute to digital eye strain, characterized by headaches, neck pain, and blurred vision.

That’s where computer glasses come in.

Research has indicated that lenses that filter out blue light significantly increase contrast. Computer glasses with yellow-tinted lenses may improve comfort levels when viewing digital devices for prolonged periods of time.

Are There Benefits to Wearing Computer Glasses?

As mentioned above, computer glasses reduce blue light exposure from computer screens and other digital devices. But are they worth getting?

According to the American Macular Degeneration Foundation, blue light can cause retinal damage “at greater intensities,” but the amount of light emitted by screens is quite low. Whether there is a cumulative effect requires further research.

Getting Computer Glasses

If you decide to get blue-light blocking lenses, you can find stylish options with or without a prescription. So if you’re farsighted and wear progressive lenses or bifocals, you can get single-lens computer glasses to match your prescription.

You may want to consider getting photochromic lenses, as they provide protection from both UV and blue light, whether indoors or out in the sun. These lenses seamlessly and automatically darken when exposed to UV rays outdoors, and become clear again when indoors.

Village Eye Centre in North Edmonton offers a variety of computer glasses and lenses. Contact us today to discuss the optimal lens features for your lifestyle and get fitted for your perfect pair.

Computer Glasses & Digital Eye Strain | Village Eye Centre

Frequently Asked Questions About Computer Glasses

Q: Are There Benefits to Wearing Computer Glasses?

  • A: Computer glasses reduce blue light exposure from computer screens and other digital devices. According to the American Macular Degeneration Foundation, blue light can cause retinal damage “at greater intensities,” but the amount of light emitted by screens is quite low. Whether there is a cumulative effect requires further research.

Q: Will Wearing Computer Glasses Mean Fewer Breaks?

  • A: In addition to computer glasses and ergonomic devices, doctors advise people to take frequent breaks while using digital devices. Walk around, stretch, go outside, and find other activities to do in between computer use. This, combined with visual aids, can help improve or even prevent DES and CVS from developing.

Quality Frames For Prescription Eyeglasses & Computer Glasses Visit Village Eye Centre for an eye exam and eyeglasses that match your style.


Frequently Asked Questions with Dr. James Evans

Q: Can you request lenses made from glass? Is glass still used for lenses?

  • A: Opticians still sometimes use glass for lenses. However, glass is not used very often because they aren’t as safe. If these glass lenses breaks, they can shatters into many pieces and can injure the eye. Glass lenses are much heavier than plastic lenses, so they can make your eyeglasses less comfortable to wear.

Q: Can a coating be added to eyeglasses to protect them from further scratches?

  • A: A protective coating can’t be added to a lens after it’s scratched. The coating is applied when the lens is manufactured and can’t be put on later.

Quality Frames For Prescription Eyeglasses & Computer Glasses In Sherwood Park, Alberta. Visit Village Eye Centre Sherwood Park for an eye exam and eyeglasses that match your style.

Computer Glasses: Relief from Computer Vision Syndrome

According to recent studies, 60% of people spend as much as 6 hours a day in front of a digital device whether it is a computer, tablet, smartphone or other gadgets.

These devices emit "blue light" or high-energy visible (HEV) light, which is a known cause of computer vision syndrome, sleep disruptions and other potential dangers to the eyes. Blue light radiation is naturally emitted from the sun, but also artificially from television screens, electronic devices, and fluorescent and LED lighting.

What is Blue Light?

Emitted from the sun, blue light is naturally occurring in the world around us. On the spectrum of visible light (light that humans can see), blue light has the highest energy and the shortest wavelength.

It is also sometimes known as blue-violet or violet light, which is where ultraviolet (UV) light rays that are just beyond our perception get their name. Much like ultraviolet light, blue light has both dangers and benefits to our health, particularly to our eyes.

Finding The Right Pair


There lots of options for computer glasses, even some that are designed for device users without a prescription or to wear with contact lenses.

When shopping for computer glasses we want to be sure you find the right pair. Ask us about your options! Here are some of the options available.

While all of these are good options for protecting your eyes, the 20/20/20 rule still applies – after every 20 minutes of near tasks, look at something beyond 20 feet away for at least 20 seconds…it’s a good time to stretch the rest of the body too.

Eye exams are important to test your focusing ability, and to ensure that both eyes are working and focusing at the same place. Many people do not have the same prescription in each eye.

What Are Your Options?


Single Vision Computer Glasses

Provide the optimum lens power and field of view for viewing your computer screen without straining or leaning in to reduce symptoms of CVS.

These are ideal for when the computer is at a fixed working distance and work well if the user needs to view multiple screens at the same working distance.

Office Lenses or Progressive Lenses

No-line multifocal eyewear that can be made to correct near, intermediate and some distance vision with a larger intermediate zone for computer vision if indicated.

Perfect for those with presbyopia which is the gradual loss of focusing ability that occurs naturally with age. Office lenses work like progressive lenses but provide a wider field of view for intermediate (1-3 m) viewing distance and near working distance (about 40 cm).

Blue-Blocking Lenses

Definitely recommended for this electronic age, blue-blocking lenses block blue light emitted from computer screens that are associated with glare, eye strain, and possible sleep disturbances.

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As people move from their computer to their tablet to their phone, more and more of these symptoms are seen, and in younger and younger people. Computer glasses offer a solution to reduce the strain on your eyes and your exposure to blue light radiation. If you experience any pain or discomfort call Village Eye Centre at 587-410-5920.

Computer glasses reduce eye strain by adjusting the focus slightly so that your eyes feel like they are focusing on something further away. They also have a tint to remove the glare and block blue light from entering into your eyes.

They specialized glasses designed to emphasize comfortable intermediate viewing, helping your eyes more easily focus on the computer screen with less effort and making computer viewing over an extended period of time noticeably more comfortable.

The lenses are equipped with special coatings or lenses that are made to filter the harmful blue light waves. By filtering out harmful HEV rays they make extended computer use more comfortable while reduces the risk of developing macular degeneration in the future and other vision health issues.

How Can You Protect Yourself from Blue Light Emissions?

As the dangers of blue light from digital devices emerge, more and more options are becoming available to protect your eyes. The eyes have very limited natural ability to block out blue light radiation so we need to be aware of blue light exposure and how to minimize it.

Computer glasses with blue-blocking lenses, coatings, and filters are a good solution for those working on a computer for long periods of time each day.

You can also add anti-glare coatings with blue light protection to your regular eyeglass and sunglass lenses. Additionally, there are filters available for devices such as computers, smartphones, and tablets, to reduce the amount of blue light radiation that can reach your eyes.

The easiest way to reduce blue light exposure is to take frequent breaks when working on a computer and to reduce screen time overall.

We provide our patients with sophisticated blue light blocking lenses that can shield your eyes from direct exposure to blue light.

ZEISS DuraVision BlueProtect

The ZEISS DuraVision BlueProtect lenses filter out wavelengths of blue-violet that are shorter than 440nm — the range of light which is considered by eye doctors to be the most dangerous.

By blocking only these very high energy wavelengths, the ZEISS DuraVision BlueProtect coating protects your eyes from retinal cell damage, phototoxicity, and disruptions to your sleep cycle while allowing beneficial frequencies of blue light through. You will be protected with clear and true-color vision while still enjoying the benefits of blue light.

Shamir Blue Zero

Shamir uses a unique polymer formula to produce these high-tech lenses. The Shamir Blue Zero High Index 1.67 and Trivex lenses block up to 98% of high energy blue light in the 415-435 nm range. The Shamir Blue Zero Polycarbonate lenses block up to 50%.

This allows you to enjoy significant protection from blue light while still enjoying crisp, clear, and true-color vision. On average, Shamir Blue Zero blocks about three times the amount of harmful blue light as compared to standard clear lenses.

Hoya BlueControl

These lenses from Hoya provides blue light protection along with excellent contrast and reduced glare for clear and comfortable viewing of digital devices in a way which reduces eye strain and improves color perception.

The Effects of Digital Eye Strain


eye-retinal-imaging

Nearly 70 percent of U.S. adults experience digital eye strain as a result of the growing use of computers and digital devices. Adults aged 18 to 34 report feeling eye strain at a higher rate (45%) than their older counterparts.

computer-eye

New research also suggests that overexposure to blue light, also referred to as high-energy visible or HEV light, may contribute to vision problems such as cataracts and age-related macular degeneration (AMD).

glasses

Implications are just now being studied, but the short-term impact of digital eye strain affects individuals on a daily basis. Eye care providers are noting a steady rise in the incidence of myopia as well, which research suggests could be correlated to the increase of screen time and near focusing.

Refocus on the Digital Age with Computer Glasses

Digital devices have impacted our world in so many positive ways, allowing us to connect, work, play and get information at the speed of light. But all of this good brings with it a measure of concern: Digital Eye Strain or Computer Vision Syndrome.

Focusing on your vision on digital devices for long periods can cause eye fatigue and eyestrain. In fact, up to 70% of North American adults suffer from symptoms of Digital Eye Strain which include:

  • Headaches
  • Blurred or double vision
  • Sore eyes
  • Dry or watery eyes
  • Sensitivity to light
  • Neck, shoulder or back pain

In addition to these symptoms, emerging research shows that blue light from digital devices causes sleep disturbances by interfering with the REM cycle of sleep.

As people move from their computer to their tablet to their phone, more and more of these symptoms are being seen, and in younger and younger people.

How They Work

Computer glasses reduce eye strain by adjusting the focus slightly so your eyes feel like they are focusing on something further away. They also have a tint to remove the glare and block blue light from entering into your eyes.

Finding the Right Pair

There are a number of companies that make computer glasses, some that are designed for device users without a prescription or that would wear the glasses with contact lenses. Other manufacturers provide options to incorporate vision prescriptions into the lens.

When shopping for computer glasses you want to make sure you find the right pair. The eyewear should sit nicely on your face and provide a comfortable tint.

Children and Computer Glasses

Children are using digital devices more than ever and this trend will only continue as smartphones take over and tablet and computer-based learning increases. Their use extends well beyond the school day as well, as they use computers for homework and gaming and smartphones to text with their friends.

Computer glasses should be used for kids preventatively before eye strain begins to keep their eyes healthy longer and prevent nearsightedness.

Don’t wait for eye strain to affect you and your family members. Take computer vision syndrome seriously and ask your eye doctor about how computer glasses can help.